Rachel Dolezal passed is a black woman for a lot of years. She identifies more with black cultures than with white. She is to be pitied, not mocked, not praised; pitied.
But the very fact she could pass as a black woman when she is white should put racism and the entire concept of race under a microscope: a woman who is clearly white simply wore her a different way and put together family photos with other people who are black and at University she studied African American culture. It was, and I suspect it still is, a passion of hers.
This raises an interesting question, however; would Rachel Dolezal, white woman, who studied African American culture and history so deeply, have made it so far into the black community that she were allowed to run a chapter of the NAACP if she had just admitted she's white? With the exception of her skin colour, RD did have the bonafides for the work - charges of perjury aside.
I think this is a conversation the entire United States should be having. What constitutes race?